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F. A. BURNHAM. MACHINE ECE CUTTING 'PRINTERS' LEADS AND METALLIC RULES.`

No. 580,658. Patented Apr. 13, 1897.

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UNITED STATES PATENT OFFICE.

FRANK A. BURNHAM, OF CLEVELAND, OHIO, ASSIGNOR TO THE CHANDLER & PRICECOMPANY, OF SAME PLACE.

MACHINE FOR CUTTING PRINTERS LEADS AND METALLIC RULES.

SPECIFICATION forming part of Letters Patent No. 580,658, dated April13, 1897.

Application led December 9, 1896. Serial No. 615,072. (No model.)

To a/ZZ whom t may concern.-

Be it known that I, FRANK A. BURNHAM, of Cleveland, Cuyahoga county,Ohio, have invented certain new and useful Improvements in Machines forCutting Printers Leads and Metallic Rules; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains to 1omake and use the same.

My invention relates to improvements in machines for cutting printersleads and metallic rules; and it consists in certain features ofconstruction and combinations of parts hereinafter described, andpointed out in the claims.

The object of my invention is to provide a machine of the characterindicated that is more simple, convenient, and efficient than zo thecutting-machines heretofore devised.

In the accompanying drawings, Figures I and II are front side elevationsof a cuttingmachine embodying my invention. Fig. III is asomewhat-enlarged vertical section on line III III, Fig. I. Fig. lV is asomewhatenlarged vertical section on line IV IV, Fig. Il. Figs. V and VIare opposite end views of the machine. Portions are broken away and insection in Fig. V.

3o Referring to the drawings, A designates the horizontally-arrangedsupporting-base of the machine. An upright arm or standard B is suitablysecured to said base and is provided witha laterally and leftwardextending arm b, that preferably just below its central portion isprovided with a forwardly-projecting tenon or tongue h', extendinglongitudinally of the arm. The upper side b2 of said tenon or tongueforms the seat for the metallic strip 4o or work required to be gagedand cut, and the forward side of arm Z9 above tongue or tenon b forms aback-rest for the work. This back-rest inclines upwardly and rearwardly,by which construction' the strip of lead or metallic rule whenintroduced into the machine will readily become evenly seated by gravityfrom end to end upon the upper or seat-forming side of tenon or tongueb', and the seat h2 inclines forwardly and upwardly 5o at right anglesto the back-rest.

C designates the stationary knife of the machine. Said knifel is seatedin a recess or pocket B', formed in the forward and rightliand sides ofstandard B at the right-hand end of arm b, to which said knife isremovably secured by screws C. The cutting edge of this knife is formedupon the right-hand forward corner of the knife-forming plate or block,and, together with the forward edge of `said block or plate, inclinesupwardly and 6o rearwardly to conform to the upward and rearwardinclination of and is iiush with the works back-rest. The movable knifeD is removably secured, by means of screws d, within a recess or pocketE', formed in the 65 rear and left-hand sides of a forwardly andrearwardly tilting arm E, that is horizontally pivoted or fulcrumed atits lower end at e and below arm l) to standard B. The movable knife isarranged to cooperate with the sta- 7o tionary knife, and the cuttingedge of the movable knife is consequently formed upon the rear andleft-hand extremity of the movable knife and has its sweep next to therighthand side of the stationary knife. Arm E is bifurcated at its upperend, and the slot E2 within said bifurcated end has its lower wallrounded and engaged by the correspondinglyrounded lower end ofthedepending short arln G of a bell-crank lever that is horizon- 8otally fulcrumed at g to the upper end of standard B, and the long arm G'of said lever extends forwardly and at its forward end terminates in ahandle gl By this construction it will be observed great power isattained, and this, of course, is desirable in machines of the characterindicated.

The short arm of the bell-crank lever is provided with a flange G2, thatoverlaps the right-hand or outer side of the upper end of 9o arm E andprevents springing of the movable knife from the stationary knife duringthe cutting operation. A spiral spring H, attached at one end to a lugG3, formed upon and projecting rearwardly from the bellcrank lever atthe axis of said lever and attached at its opposite end to a lug B2,forlned upon and projecting laterally and rightward from the standard B,actsv to retain the movable knife in its normal position, and conse- Iooquently facilitates the return of said knife into said position upon thecompletion of the cutting operation. The forward and rear walls of slotE2 diverge upwardly, and said slot above its lower rounded wall is widerthan the lever-arms position that engages the upper portion of the slotto accommodate the operation of the lever. Two .shoulders e and e2 areformed at the upper extremities of arm E at the front side and rearside, respectively, of slot E2. In solid lines, Figs. V and VI, is shownthe position of arm E and engaging lever upon the completion of acutting operation, and in this position shoulder e is engaged by theforward side of leverarm G and prevents the lever and engagingknife-bearin g arm from moving farther in the direction in which theyare moved when the machine is cutting. In dotted lines, Fig. V, is shownthe normal position of the bell-crank lever and the engagingknife-bearing arm, and in this position shoulder e2 is engaged by therear side of lever-arm G and prevents the return movement of said partsafter the cutting operation beyond their normal position.

The device for gaging the length of the lead or rule to be cut comprisesa longitudinallyadjustable bar I, that is slidably mounted upon tongueor tenon b/ and is rigidly secured in the desired longitudinaladjustment by a set-screw J, that is adapted to engage any one ofseveral screw-threaded holes b5, formed 'in said tenon or tongue. Bar Iextends longitudinally of the tongue or tenon and is provided with twoparallel flanges I I2, formed upon its opposite sides, respectively, anda suitable distance apart. Said flanges extend longitudinally of thebar, and the flange that is at the rear side of the bar overlaps theupper side of the slideway-forming tongue or tenon and is instrumentalin supporting the bar from said tongue or tenon. The two flanges I andI2 accommodate a lateral reversal of bar I. Said bar is also providedwith two gage-forming lugs or flanges I3 and I4, formed upon oppositeends, respectively, and at opposite sides, respectively, of the bar. Lugor iiange I3, that is at the right-hand end of the bar, is arranged torest upon the works seat b2 and abut the back-rest in one of the lateralpositions of said bar and is employed in gaging the shorter and mediumleads and rules. Lug or flange I4, that is at the left-hand end of thebar, is arranged to abut the back-rest when it rests upon the works seatin the other or reverse lateral position of the bar and is employed ingaging longer leads and rules.

A scale b3, marked upon the upper portion of the back-rest, is used inconjunction with the gage I3 at the right-hand end of the sliding bar,and another scale h4, marked upon the lower portion of said rest, isemployed in conjunction with the gage I4, formed upon the the left-handend of said bar. Both of said scales extend from right to left, andscale if* constitutes a continuation of scale b3, and gage I4, that isdesigned to begin its work at the limit of the gaging capacity of gageI3, is capable of gaging work that is much longer than arm b. p

The slot l5 in bar I, and through which setscrew J extends, is longenough to accommodate the longitudinal adjustment of the gagebar, and awasher K is interposed between the head of the set-screw and forwardside of said bar, and has a portion K thereof projecting rearwardly intosaid slot and easily fitting between the top and bottom walls of theslot, as shown in Fig. III.

The gage-bar is locked in the desired longitudinal adjustment andthereby prevented from displacement while it is secured by setscrew J,by a movable latch L, whose one end is pivoted horizontally andlongitudinally of bar I, as at l, to a lug or ear I6, formed upon theright-hand end of said bar at the inner end of gage-forming member I3.Latch L is arranged to engage any one of the series of vertical orupright notches h6, formed at equal distances apart in the forward sideof tongue or tenon b. Adjacent notches are separated a distance equal tothe distance between the graduations of scales b3 and b4. By tiltingthis latch forwardly out of engagement with the opposite notch and'loosening screw J bar I is rendered free to be moved longitudinally. Thesweep of this latch is forward of gage I3 when the latter is in anoperative position, as shown in Fig. I, and is at the rear of said gagewhen gage I4 is in its working position, as shown in Fig. II. Thepivotal attachment of this latch accommodates its location between twoadjacent notches bf", out of engagement with any notch, whenA oddlengths, for which notches b have not been provided, are to be out bythe machine.

A pointer L/ for the lower scale b4 is preferably formed upon the freeend of latch L.

W'hat I claim isl. A cutting-machine of the character indicated,comprising a standard having a laterally-extending arm provided with theseat and back-rest for the work, the stationary knife arranged flushwith the back-rest at one end of said arm, the movable knife having itssweep next adjacent to the stationary knife, and thelaterally-reversible gage-bar provided with means for supporting it fromthe works seat in either lateral position of the bar, and provided atone end with a gage-formin g member rendered operative in one of thelateral positions of the bar, and having, at its other end, anothergage-forming member arranged to be rendered operative in the reverselateral position of the bar, substantially as and for t-he purpose setforth.

2. A cutting-machine of the character indicated, comprising a standardhaving a laterally-extending arm provided with the seat and back-restfor the work 5 a stationary knife IOO IIO

arranged flush with the back-rest at one end of the bar; a movable knifehaving its sweep neXt adjacent to the stationary knife; alongitudinally-adjustable and laterally-reversible gage-bar having twolateral iianges arranged longitudinally thereof and formed upon oppositesides, respectively, and at the top and bottom, respectively, of thebar, said bar provided, at one end and at one side, with a gage-formingmember arranged to be rendered operative in one of the lateral positionsof the bar, and the bar having, at its opposite side and opposite end,another gage-forming member arranged to be rendered operative in thereverse lateral position of the bar, and means for holding the bar inthe desired longitudinal adjustment, substantially as and for thepurpose set forth.

3. A cutting-machine of the character indicated, comprising a standardhaving a laterally-extending arm shaped to form a rearwardly andupwardly inclinin g back-rest for the work, and provided, upon itsforward side, with the forwardly-projecting tongue or tenon h; thestationary knife C the movable knife D; the longitudinally-adjustableand laterally-reversible gage-bar I having the lateral and longitudinalflanges I' and Pand the gageforming lugs or flanges l3 and I4, and meansfor holding the bar in the desired adjustment, all arrangedl andoperating substantially as shown, for the purpose specified.

et. A cutting-machine of the character indicated, comprising a standardhaving a laterally-extending arm shaped to form a backrest and provided,at the lower extremity of the back-rest, with a forwardly-projectingtongue or tenon arranged longitudinally of the arm and having a seriesof notches arranged at equal intervals; the stationary knife arrangedflush with the back-rest at one end of the arm; the movable knife havingits sweep next adjacent to the stationary knife; thelongitudinally-adjustable gage-bar provided with means for supporting itfrom the aforesaid tongue or tenon, and the forwardly and rearwardlytiltable latch pivoted to said arm and arranged to engage a notch of theaforesaid series of notches, substantially as and for the purpose setforth.

5. A cutting-machine of the character indicated, comprising a standardhaving a laterally-extending arm having a back-rest for the work, andprovided, at the lower extremity of said rest, with aforwardly-projecting tongue or tenon arranged longitudinally of the armand having a series of notches arranged at equal intervals; thestationary knife arranged flush with the back-rest at one end of thearm; a movable knife having its sweep next adjacent to the stationaryknife; the longitudinally-adjustable and laterallyreversible gage-barprovided with means for supporting it from the aforesaid tongue ortenon, said bar provided, at one end and at one side, with agage-forming member arranged to be rendered operative in one of thelateral positions of the bar, and said bar having, at its opposite sideand opposite end, another gage-forming member arranged to be renderedoperative in the reverse lateral position of the bar, and a forwardlyand rearwardl y tiltable latch supported from said bar at or near theinner end of one of said gageforming Amembers and arranged to engage anotch of the aforesaid series of notches in the operative position ofeither gage-forming member of the bar, substantially as set forth. 6. Acutting-machine of the character indicated, comprising a standard havinga laterally-extending arm shaped and arranged to form a seat and arearwardly and upwardly inolining back-rest for the work; a stationaryknife arranged iiush with the back-rest at one end of said arm; amovable knife having its sweep next adjacent to the stationary knife; alaterally-reversible gage-bar provided with means for supporting it fromthe works seat in either lateral position of the bar, and provided atone end with a gageforming member arranged to be rendered operative inone of the lateral positions of the bar, and having, at the other end,another gage-forming member arranged to be rendered operative in thereverse lateral position of the bar, and the two scales h3 b4 formedupon the upper portion and lower portions, respectively, of theback-rest, all arranged and operating substantially as shown, for thepurpose specified.

7. In a cutting-machine of the characterindicated, the combination withthe standard having a rest for the work, a stationary knife at one endof said rest, the forwardly and rearwardly tiltable arm pivoted orfulorumed, at its lower end, and provided with a knife arranged tocooperate with the stationary knife, and said knife-bearing arm beingbifurcated at its upper end, and a bell-crank lever supported from theupper end of the standard and comprising a forwardly-extending arm and ashort arm engaging a slot in the bifurcated end of the knife-bearingarm; of the iiange Gr2 formed upon said short arm of the lever andoverlapping the outer side of the knife-bearin g arm,substantially asshown, for the purpose specified.

8. A cutting-machine of the character indicated, comprising a standardhaving a laterally-extending arm shaped to afford a support for thework; means for gag-ing the work; a stationary knife arranged'at one endof said arm; a forwardly and rearwardly tiltable arm pivoted orfulcrumed at its lower end, and provided with a knife arranged tocoperate with the stationary knife, said knife-bearing arm beingprovided, in its upper end, with an upright slot E2 that is open at thetop and has a rounded lower wall; a bell-crank lever supported from theupper end of the standard, said lever comprising a forwardly-extendingarm and a depending short arm rounded at its lower end and engaging thelower end of said slot and narrower than said IOC IIO

IIS

slot above its rounded end; the shoulders e' and e2 formed at the upperextremities of the slotted arm at the front side and rear side,respectively, of the slot, and a spring` toting to retain theknife-bearing arm and engaging lever in their normal position,substantially as shown, for the purpose specified.

In testimony whereof I sign this specifica` tion, in the presence of tWoWitnesses, this 24th day of November, 1896.

. FRANK A. BURNHAM.

Witnesses:

C. H. DORER, ELLA E. TILDEN.

